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Add new CPP macros which make it cleaner to have conditional compilation based on compiler/system and options selected during config

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Examples:

#if COMPILER(MSVC)
#if COMPILER(GCC)

#if ENABLE(NLS)
#if HAVE(PUTENV)

This platform.h file includes config.h, so that doesn't need to be included any more.

PLATFORM(X) is based on the definition of GNC_PLATFORM_X
COMPILER(X) is based on the definition of GNC_COMPILER_X.  At this point, only COMPILER(GCC), COMPILER(MSVC), COMPILER(MSVC7) and COMPILER(MINGW) are determined.
HAVE(X) is based on HAVE_X from config.h
ENABLE(X) is based on ENABLE_X from config.h
USE(X) is based on GNC_USE_X from config.h

Having these determinations at a central point makes it easier to add new platforms and easier to conditionally compile based on them.



git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@18957 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Phil Longstaff 2010-03-23 18:34:17 +00:00
parent 7b69a7f00f
commit cc843b4506
1 changed files with 69 additions and 0 deletions
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69
src/platform.h Normal file
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/********************************************************************\
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 of *
* the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License*
* along with this program; if not, contact: *
* *
* Free Software Foundation Voice: +1-617-542-5942 *
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
* Boston, MA 02110-1301, USA gnu@gnu.org *
* *
\********************************************************************/
#ifndef GNC_PLATFORM_H
#define GNC_PLATFORM_H
#include "config.h"
/* PLATFORM handles OS, operating environment, graphics API, and CPU */
#define PLATFORM(GNC_FEATURE) (defined( GNC_PLATFORM_##GNC_FEATURE ) && GNC_PLATFORM_##GNC_FEATURE)
#define COMPILER(GNC_FEATURE) (defined( GNC_COMPILER_##GNC_FEATURE ) && GNC_COMPILER_##GNC_FEATURE)
#define HAVE(GNC_FEATURE) (defined( HAVE_##GNC_FEATURE ) && HAVE_##GNC_FEATURE)
#define USE(GNC_FEATURE) (defined( GNC_USE_##GNC_FEATURE ) && GNC_USE_##GNC_FEATURE)
#define ENABLE(GNC_FEATURE) (defined( ENABLE_##GNC_FEATURE ) && ENABLE_##GNC_FEATURE)
/* Operating systems - low-level dependencies */
/* Operating environments */
/* Graphics engines */
/* CPU */
/* Compiler */
/* COMPILER(MSVC) */
#if defined(_MSC_VER)
#define GNC_COMPILER_MSVC 1
#if _MSC_VER < 1400
#define GNC_COMPILER_MSVC7 1
#endif
#endif
/* COMPILER(RVCT) */
#if defined(__CC_ARM) || defined(__ARMCC__)
#define GNC_COMPILER_RVCT 1
#endif
/* COMPILER(GCC) */
/* --gnu option of the RVCT compiler also defines __GNUC__ */
#if defined(__GNUC__) && !COMPILER(RVCT)
#define GNC_COMPILER_GCC 1
#endif
/* COMPILER(MINGW) */
#if defined(MINGW) || defined(__MINGW32__)
#define GNC_COMPILER_MINGW 1
#endif
/* ENABLE macro defaults */
#endif /* GNC_PLATFORM_H */